Things I liked: It is hard to beat having a hand pump to fill your gun and while it is rather inexpensive to maintain and fill a tank to be able to easily fill your gun the cost to get one is as much as another gun... long story short you can fill your gun anywhere any time without having to worry... awesome!

Things I would have changed: i would like to see some type of swivel and clamp for the hose to make it a little easier to store... really not that big a deal